Shield or guard for telephones.



R. lrLMAxwsLLI a SHIELD 0R GUARD FOR TELEPHONES.

APRLlcATloN FILED luLY 1. 1914.' v

l l 11425600.` PafenfedJune 3,1915.

'HE NORRIS PETERSCO.. PHPNLITHO.. WASHINGTUN. D. C..

, Y www,

RUSSELL HOWARD MAXWELL, *0F TRENTON, .N'FIVVy JERSEY.

' .A- SHIELD OR'GUARD FOR TELEPHONES.

(Specificationof Letters Patent.

'Application ile'd Iulyl, 1914. Serial No.'848,`425.

To all whom t may concern Be "it 'known that HfI, v)R'UssnLL HOWARDMAXWELL, a citizen of the United Sta-tes, residing at Trenton, inthecounty-of Mercer and State of N ew Jersey, :have invented new and usefulImprovements in Shields or Guards for Telephones, of which the followingis a specification.

This invention relates to improvements in shields or guards fortelephones and has particular application to a cover V'for the mouthpiece of the transmitter and the ear piece of the receiver.

In carrying out the present invention, it is my purpose to provide aguard or shield of the class described which may be readily applied toand removed from the particular instrument of the telephone set andwhich will be conducive to sanitation.

It is also my purpose to provide a device of the type set forth whichwill embracethe desired features of simplicity, efficiency anddurability, which may be manufactured and marketed at a minimum expenseand which may be readilv carried about the person and applied to thetelephone instrument and removed therefrom. i

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter set forthin and falling within the scope of the claim.

In the accompanying drawing; Figure 1 is a plan view of a shieldconstructed in' accordance with the present invention. Fig. 2 is aperspective view taken from the rear of the device. Fig. 3 is a crosssectional view f through the shield showing the same as applied to themouth piece of the telephone transmitter. Fig. 4L is a perspective viewshowing the shield as constructed to fit the ear piece of the receiver.Fig. 5 is a vertical sectional view through the device shown in Fig. 4applied to the receiver.

Referring now to the drawing in detail and particularly to the form ofmy invention illustrated in Figs. l, 2 and 3, l designates a circulardisk preferably of a diameter slightly greater than the diameter of theflared end of the mouth piece of a telephone transmitter and formedeccentrically with an aperture 2 and having the portion thereofconcentrically of such aperture flared rearwardly as at 3 to provide adepression in the front face of the disk contiguous the aperture 2therein and concentrically of such aperture.

ratentea .faire si, iai-af Suitably fastened to the `rear .face of the ldisk concentrically yofzthe 'opening 'therein is a metal ring i vandprojecting rearwardly from such ring and spaced apart equal dis'-tancesabout the same are securing posts 5.

'Connected tothe outerends of the securlng posts and held spaced apartfrom the aperture 2 and concentrically thereof is a relatively smalldisk '6 formed with apertures 7.

Fastened to the back face of the disk l at the long radius thereof is anarcuate shaped strip 8 curved to conform to the curvature of the diskand having the inner edge thereof formed with inwardly extending springfingers 9 spaced apart equal distances and adapted to grip the adjacentportion of the telephone mouth piece.

In practice, the rear face of the disk l is placed against the outeredge of the mouth piece'with the fingers 9 engaging the top portion ofsuch mouthpiece and move slightly downwardly so'as to increase thefrictional contact between the fingers and the mouth piece whereby thedisk will be securely held in place. In this position of the disk theaperture 2 is disposedapproximately cen--v trally of the aXis of themouth piece of the transmitter and the rearwardly flared portion 3 ofthe disk serves to concentrate the sound waves and direct the same intothe transmitter mouth piece through the aperture 2 and the openings'inthe disk 7 In the form of my invention shown in Figs. 4 and 5, theopening 2 is disposed concentrically of the aXis of the disk l and themarginal edge ofthe disk for a'portion of the circumference thereof isformed with a rearwardly extending curved flange 10 designed to surroundthe adjacent portion of the ear piece of the receiver.

Fastened to the outer surface of the flange 10 is a metal strip 11carrying gripping fingers l2 spaced apart equal distances and projectingtoward the center of the disk 1 and rearwardly thereof so as to grip thebody of the receiver at the rear of the ear piece, as clearlyillustrated in Fig. 5, whereby the shield or guard will be effectivelysecured to the receiver. When the shield is applied to the receiver asshown in Fig. 5, the opening 2 registers with the opening in the earpiece of the receiver and is disposed concentrically of the aXis thereofso as to facilitate the emission of the sound waves from the receiver.

From the foregoing description taken in connection with the accompanyingdrawing, the construction, and manner of employing my improved shield orguard will be readily apparent. It will be seen that I have provided ashield or guard which may be readily and quickly applied to and removedfrom the respective telephone instruments and which will promotesanitation and eliminate contagion.

While I have herein shown and described one preferred form of myinvention by way of illustration, I wish it to be understood that I donot limit or confine myself to the precise details of constructionherein described and delineated, as modification and variation may bemade within the scope of the claim without departingfrom the spirit ofthe invention.

I claim:

A shield of the class described comprising a circular disk having anopening formed therein, a curved flange formed on said disk at themarginal edge thereof, a curved strip secured to the outer surface ofsaid flange, and fingers formed on one edge of said strip and extendingover the outer end of said flange toward the central portion of thedisk.

In testimony whereof I affix my signature in presence of two witnesses.

RUSSELL HOWARD MAXWELL.

Witnesses:

HELEN G. DALEY, W. S. MCDOWELL.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

